Mercurial > projects > ddmd
view dmd/Catch.d @ 192:eb38fdcb3e62 default tip
updated to compile with dmd2.062
author | korDen |
---|---|
date | Sat, 02 Mar 2013 01:25:52 -0800 |
parents | b0d41ff5e0df |
children |
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module dmd.Catch; import dmd.common; import dmd.Loc; import dmd.Type; import dmd.Scope; import dmd.Identifier; import dmd.VarDeclaration; import dmd.Statement; import dmd.OutBuffer; import dmd.Id; import dmd.TypeIdentifier; import dmd.Util; import dmd.ScopeDsymbol; import dmd.HdrGenState; import dmd.BE; import dmd.TObject; import dmd.DDMDExtensions; class Catch : TObject { mixin insertMemberExtension!(typeof(this)); Loc loc; Type type; Identifier ident; VarDeclaration var = null; Statement handler; this(Loc loc, Type t, Identifier id, Statement handler) { register(); //printf("Catch(%s, loc = %s)\n", id.toChars(), loc.toChars()); this.loc = loc; this.type = t; this.ident = id; this.handler = handler; } Catch syntaxCopy() { Catch c = new Catch(loc, (type ? type.syntaxCopy() : null), ident, (handler ? handler.syntaxCopy() : null)); return c; } void semantic(Scope sc) { ScopeDsymbol sym; //printf("Catch.semantic(%s)\n", ident.toChars()); version (IN_GCC) { } else { if (sc.tf) { /* This is because the _d_local_unwind() gets the stack munged * up on this. The workaround is to place any try-catches into * a separate function, and call that. * To fix, have the compiler automatically convert the finally * body into a nested function. */ error(loc, "cannot put catch statement inside finally block"); } } sym = new ScopeDsymbol(); sym.parent = sc.scopesym; sc = sc.push(sym); if (!type) type = new TypeIdentifier(Loc(0), Id.Object_); type = type.semantic(loc, sc); if (!type.toBasetype().isClassHandle()) error("can only catch class objects, not '%s'", type.toChars()); else if (ident) { var = new VarDeclaration(loc, type, ident, null); var.parent = sc.parent; sc.insert(var); } handler = handler.semantic(sc); sc.pop(); } BE blockExit() { return handler ? handler.blockExit() : BE.BEfallthru; } void toCBuffer(OutBuffer buf, HdrGenState* hgs) { buf.writestring("catch"); if (type) { buf.writebyte('('); type.toCBuffer(buf, ident, hgs); buf.writebyte(')'); } buf.writenl(); buf.writebyte('{'); buf.writenl(); if (handler) handler.toCBuffer(buf, hgs); buf.writebyte('}'); buf.writenl(); } }